Pages

Wednesday, 19 February 2014

Pineapples Galore!

Last week saw the start of another pineapple painting for me. I always recommend painting a subject more than once if you really want to get to grips with it.....this is my 5th pineapple! In fact many botanical artists seem to attempt a pineapple at some point! A quick Google search reveals a huge selection ....it's one of those 'must try' subjects.

Pineapple study page, February 2014

You can find any number of great examples of contemporary pineapple paintings, Coral Guest and Fiona Strickland to name a couple of the best. Historical botanical illustrations documenting pineapples are also plentiful, Georg Dionysius Ehret, Maria Sibylla Merian and Marianne North all illustrated this exotic fruit. But why is the pineapple so
appealing?

Firstly, it's a pretty good subject. Technically quite challenging with its 'Fibonacci' spirals ( more about that later) so requires some discipline in the drawing and also has great texture and colour too. Perhaps for todays botanical artist the work of master illustrators add that extra appeal.....to paint what they painted? Except today this one time rare and much sought after fruit is readily available for us to buy and try with very little effort. The pineapple has an incredibly rich history and that bit of scientific curiosity too, so I guess all-in-all it's very appealing .....

Here's some pineapple trivia followed by a quick tutorial for anyone that fancies a go.

The Pineapple:
The pineapple, Ananas comosus is a member of the Bromeliaceae family. Thought to originate from the Orinoco
basin in South America. Prior to introduction in Europe they were distributed throughout
the tropics and this caused some confusion
about their origin. The
pineapple is desiccation-tolerant with adaptations, including CAM photosynthesis (stomata opening at night), all of which allows the plant to
cope with drought..... this probably explains why
the pineapple is so successful!

During development the fruit produces up to 200 flowers. Once it flowers,
the individual fruits of form what is known collectively as the pineapple. Whereby the ovaries develop into berries which form the large, compact, multiple accessory fruit.

In cultivation pineapples are propagated by vegetative reproduction - in fact you can cut the crown off a pineapple and grow a new one! Pollination is by hummingbirds, beetles and bats but this is not a favourable method of reproduction in crops because the seed production reduces the quality of the fruit. ....in fact the importation of hummingbirds is, I believe, banned in Hawaii because of the impact on crops.

History: When Christopher Columbus arrived at the island of
Guadeloupe in 1493, the ships crew stumbled across piles of fruits,
including pineapples as well as pots of human body parts! The European sailors first recorded the fruit which had an rough, segmented exterior rather like a pine
cone and a pulp like an apple.

John Parkinson (1567–1650), Royal Botanist to
Charles I, later described the pineapple as:

Scaly like an Artichoke at the first view,
but more like to a cone of the Pine tree,
which we call a pineapple for the forme...
being so sweete in smell... tasting... as if
Wine, Rosewater and Sugar were mixed
together. (Theatrum Botanicum)

The exact date of their introduction to Europe remains unknown but their is evidence that pineapples were being cultivated in the Netherlands by the mid to late 1600's. Once the fruit had arrived it quickly became a symbol of hospitality, power and wealth, the
pineapple really was the celebrity of the fruit world; expensive, much sought after
and often displayed in works of art and in dining room centrepieces topping towers of exotic fruit.

Still Life with Watermelons, Pineapple and Other fruit by Dutch artist Albert Eckhout (1610-1665) Eckhout's still-life paintings show Brazil's abundant crops in the 1600's ( Public domain Wikimedia Creative Commons)

The pineapple symbolism made it the subject of many works of art. The scene of Charles II's head gardener, John Rose, presenting the King with the first fruit grown in England was famously documented in this painting by Hendrik Danckerts, 1675.

The same symbolism was also used extensively in architecture. You can find pineapples used in all sorts of architectural features, on follies, gateposts and buildings. This extreme example at Dunmore House in Scotland, was added to the building sometime during the 1760's, they had a hot house of course and grew...... pineapples!

The Fibonacci myth: The fruit of a pineapple is arranged in spirals ( see image below), this arrangement commonly found in nature, in pine cones,
sunflower seed-heads and lots of other plants, it's commonly said to be a
Fibonacci sequence. While some fruit do actually have the 5,8 and 13,
or 8,13 and 21 arrangement of fruit in each spiral, all of which are
Fibonacci
numbers, many do not.

Pineapple spirals, don't necessarily exhibit Fibonacci numbers

The Fibonacci sequence was first described by mathematician Leonardo Pisano Bigollo (c. 1170 – c. 1250) as a
mathematical sequence related to growth being 1,1,2,3,5,8,13,21 and so
on - where each number is the sum of the two previous numbers. If you
count the fruit on each spiral of some pineapples, they do indeed add up to these
numbers. But this arrangement is not always the case and Fibonacciis no a magic formula or design in nature it just happens to be the most energy efficient growth pattern..... so Fibonacci's sequence is simply a model
for growth and therefore a generalisation ( and a very useful one!). I've highlighted the spirals in red, white and
blue on the fruit below, and as suspected they don't add up to a Fibonacci numbers. If you
have nothing better to do why not go and count the spirals on
pineapples in the greengrocers you will find that having checked a few -
it's more often than not often not the case, but the general growth
pattern looks much the same. So if you have tried and failed to understand the Fibonacci
spiral in a pineapples and can't seem to get the numbers that
you think it should add up to......it's not because you've missed
something! it's because there is a lot of variation in nature during
growth and only the most perfect pineapples exhibit Fibonacci numbers.
Having said that pine cones and sunflowers are more likely to exhibit
perfect sequences....yes I checked these too!

What
also appears to be true in some cases though is a Fibonacci type theorem
whereby a pineapple being a cylinder made up of these hexagonal fruit
has spirals in which the largest number of hexagons equals the sum of
the sum of the two smaller numbers. A + B = C..... So it still makes the
patten. But enough of all that.

Finally The Painting. I've written this mini guide to a study for those of you that might want to try the pineapple. It's actually not so difficult as might be assumed. The spiral sequence is a simple one.
The most common errors are
1.getting the angle of the spirals wrong
2. Making it looks too flat.

First I map out the spirals by taking some basic measurements and looking at the angles. The spiral with the most fruits is less steep than the other.

The chosen one, a short and fairly round pinepple, I took some measurements, height, width, note there is no Fibonacci sequence etc.

I make a rough drawing on tracing paper of the two main interlocking spirals - but taking to care to observe the perspective. The same type of pattern is seen in the leaves of the crown.

Drawing: Once I have the basic shape I add transfer the shape to a study page and add some detail to the drawing in the fruits and leaves.I use the same paper for the study page as I do on the final painting because otherwise the colours will be different.Position and Lighting: The best position for the fruit is eye level. The fruit is placed it on top of a glass, my set up is a low-tech balancing act using a few empties! I position the lamp at the upper front right with a daylight bulb, to avoid working in my own light. I also use a tin can to reflect a bit of light back onto the fruit. Tin cans are great for all sorts!

The set up

Take photos for reference kept at hand on the laptop- remember pineapples ripen very quickly

Colour: To be honest I don't spend a huge amount of time doing colour samples unless I'm really struggling with a particular colour. I work out the basics an play with them on the rough study.

A few little 'rules' to keep it simple:
Work out colour by finding each basic hue first, these are found in the mid tones where saturation is highest.
So I always start brighter than is needed and take it
down in saturation, for the shades using a complimentary colour or with my own
neutral tint mix.
I warm up or cool down the colours depending on the light.
Try to work with as few colours as possible.Avoid opaques other than in the initial wash, thereafter use only transparent colours to preserve the luminosity.
Avoid colours with black, e.g. indigo, sepia unless it's for dry brush detail. They make colours 'dead' if used in layered washes.

Early stages, finding the colours.

Continuing to work out the colour, the shades, techniques and glazes.

Yellows
Gut instinct tells me that the basic yellow hue found in the fruits is: New Gamboge
Warm it up with scarlet lake
Cool it down with ultraviolet

add Neutral Tint to the mix the shade colours

Greens in the fruitCobalt Dp + Transparent yellow
Warm with New Gamboge
Cool with Ultraviolet

The Browns -'bracts' on each fruit,Raw umber
warm add v small amount of Scarlet Lake
cool it with Cerulean

Add Some Cerulean on the highlights

The Crown
A very light wash of Cerulean and Ultraviolet to give the 'grey' effect applied as a wash firstTransparent yellow + Cerulean for the lighter brighter greens at the base of the crown Cobalt Blue deep and Transparent Yellow for the older leaves used selectively on areas of leaves most green e.g. leaf edges.

The Process
I work out the washes and watercolour techniques in order on the study page and make any notes
Keep an eye on the light at all times - remind yourself it's a spherical type object. Alternatively I could have painted a wash all over leaving out the main highlight but this doesn't work so well with a pineapple because of the many small areas where the light hits the fruits. So I paint each bract/ fruit individually to start with and add glazes later.

Bear in mind that the fruit ripens and changes colour rapidly - thank goodness for the photo reference!
Now I'm ready to start the painting.....

But in true Blue Peter style, here's one I made earlier.....

Pineapple watercolour from 2010

A Word of warning for potential pineapple painters. Alas there's a dark side to the
modern pineapple! This once rare sybol of wealth can be purchased at the local supermarket for less than
£1! I've never seen pineapples for that price before and competition
between growers usually means there's much high price to be paid somewhere or other in order to secure supermarket contracts! Most supplies comes from Costa Rica,
where growers may use pesticides which can affect soil quality and
reduce biodiversity. Pesticides include organophosphates and known hormone
disruptors which can affect workers' health and contaminate water
supplies. The chemical are of course found in the fruit too!.... oh and the
workers are not paid a fair wage.
To find out more read this article 'Bitter Fruit: The truth about supermarket pineapples'

So if you're going to paint a pineapple please be careful about its origin and look for the Fair Trade symbol and organic fruit.

I am unforgivably late in seeing this post. Its absoulutely perfect and the most fascinating that I have seen and read about this very popular fruit. Dianne, you paint an excellent picture, not only of the Pineapple itself but all the associated data. For me, this is the best painting of a Pineapple I have seen by a Contemporary Botanical Artist.

Copyright

About Me

Welcome to my blog, here you can find out about my work and online tuition. There's also more general information on painting, drawing and botanical art as well as a bit of science.
I've been a freelance artist and illustrator for most of my working life.... 30+ years painting professionally!I also hold a BSc in Biology specialising in floral morphology related to reproductive success in plants. I studied some IT (groan but handy stuff) and worked in education along the way before returning to painting full time. I started to paint botanicals around 2000 and completed my first bit of blogging back in January 2009, while I was a student on the on the Society of Botanical Artist's distance learning diploma course - it was intended as a personal record of my journey through the course which helped to motivate me at times when enthusiam was low and when there was virtually no communication between students. Writing always seems to add a bit of order so it works for me! I also wanted to see if I could find any others interested in botanical art.
For info on my classes: www.botanicalart-online.com